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http://dx.doi.org/10.5000/EESK.2008.12.6.055

Seismic Response Analysis for Three Dimensional Soil-structure Interaction System using Dynamic Infinite Elements  

Seo, Choon-Gyo (한국원자력연구원 연구로공학부)
Ryu, Jeong-Soo (한국원자력연구원 연구로공학부)
Kim, Jae-Min (전남대학교 건설.환경공학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.12, no.6, 2008 , pp. 55-63 More about this Journal
Abstract
This paper presents a seismic analysis technique for a 3D soil-structure interaction system in a frequency domain, based on the finite element formulation incorporating frequency-dependent infinite elements for the far field soil region. Earthquake input motions are regarded as traveling P, SV and SH waves which are incident vertically from the far-field soil region, and then equivalent earthquake forces are calculated using impedances of infinite soil by dynamic infinite elements and traction and displacement from free field response analysis. For verification and application, seismic response analyses are carried out for a multi-layered soil medium without structure and a typical nuclear power plant in consideration of soil-structure interaction. The results are compared with the free field response using a one-dimensional analytic solution, and a dynamic response of an example structure from another SSI package.
Keywords
three dimensional dynamic infinite elements; soil-structure interaction; site response analysis; nuclear containment structure;
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Times Cited By KSCI : 1  (Citation Analysis)
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